Ingot metallurgy alloys of aluminum with lithium additions offer large gains in structural efficiency due to reduced density together with increased strength and elastic modulus. Several alloys are now commercially available. The Navy has been sponsoring R&D activities in these alloys since the mid-seventies. Current efforts include ongoing multi-laboratory evaluations of aluminium-lithium alloys to replace 7075-T6 and 7075-T73. The Navy is also conducting R&D on thermal mechanical processing and superplastic forming on these alloys. Additional testing is being conducted to determine their corrosion resistance in an aircraft carrier environment. Keywords: Alloys, Metallurgy, Naval aircraft, RA-5C Vigilante, Symposia, Mechanical properties. (JG)
Aluminum Lithium Alloys for Navy Aircraft
1989
10 pages
Report
Keine Angabe
Englisch
Castings , Aluminum alloy 7075 , Naval aircraft , Modulus of elasticity , Structural properties , Nonferrous Metals & Alloys , Military aircraft , Aluminum , Processing , Alloys , Metallurgy , RA-5C Vigilante , Density , Efficiency , Reduction , Test and evaluation , Aircraft construction materials , Aircraft , Addition , Laboratories , Corrosion resistance , Lithium , Superplastic Forming , Aircraft carriers , Reprints , Aluminum alloys , Lithium alloys , Lithium additions , Symposia , Thermomechanics , Component Reports , Mechanical properties , Environments
Aluminum-Lithium Alloys in Aircraft Structures
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